4 files changed, 12 insertions, 13 deletions

diff --git a/core/fxcodec/codec/ccodec_bmpmodule.cpp b/core/fxcodec/codec/ccodec_bmpmodule.cpp
index f237b14448..d891a37ee4 100644
--- a/core/fxcodec/codec/ccodec_bmpmodule.cpp
+++ b/core/fxcodec/codec/ccodec_bmpmodule.cpp
@@ -28,7 +28,7 @@ static void bmp_free_func(void* p) {
 };
 static void bmp_error_data(bmp_decompress_struct_p bmp_ptr,
                            const char* err_msg) {
-  FXSYS_strncpy((char*)bmp_ptr->err_ptr, err_msg, BMP_MAX_ERROR_SIZE - 1);
+  strncpy((char*)bmp_ptr->err_ptr, err_msg, BMP_MAX_ERROR_SIZE - 1);
   longjmp(bmp_ptr->jmpbuf, 1);
 }
 static void bmp_read_scanline(bmp_decompress_struct_p bmp_ptr,
diff --git a/core/fxcodec/codec/ccodec_gifmodule.cpp b/core/fxcodec/codec/ccodec_gifmodule.cpp
index 91c64a06a1..b7352ba53c 100644
--- a/core/fxcodec/codec/ccodec_gifmodule.cpp
+++ b/core/fxcodec/codec/ccodec_gifmodule.cpp
@@ -30,7 +30,7 @@ static void gif_free_func(void* p) {
 
 static void gif_error_data(gif_decompress_struct_p gif_ptr,
                            const char* err_msg) {
-  FXSYS_strncpy((char*)gif_ptr->err_ptr, err_msg, GIF_MAX_ERROR_SIZE - 1);
+  strncpy((char*)gif_ptr->err_ptr, err_msg, GIF_MAX_ERROR_SIZE - 1);
   longjmp(gif_ptr->jmpbuf, 1);
 }
 
diff --git a/core/fxcodec/codec/ccodec_pngmodule.cpp b/core/fxcodec/codec/ccodec_pngmodule.cpp
index 4bd4cfce93..2b8f95799e 100644
--- a/core/fxcodec/codec/ccodec_pngmodule.cpp
+++ b/core/fxcodec/codec/ccodec_pngmodule.cpp
@@ -19,8 +19,7 @@ extern "C" {
 
 static void _png_error_data(png_structp png_ptr, png_const_charp error_msg) {
   if (png_get_error_ptr(png_ptr)) {
-    FXSYS_strncpy((char*)png_get_error_ptr(png_ptr), error_msg,
-                  PNG_ERROR_SIZE - 1);
+    strncpy((char*)png_get_error_ptr(png_ptr), error_msg, PNG_ERROR_SIZE - 1);
   }
   longjmp(png_jmpbuf(png_ptr), 1);
 }
@@ -252,7 +251,7 @@ bool CCodec_PngModule::Input(FXPNG_Context* ctx,
                              CFX_DIBAttribute* pAttribute) {
   if (setjmp(png_jmpbuf(ctx->png_ptr))) {
     if (pAttribute &&
-        0 == FXSYS_strcmp(m_szLastError, "Read Header Callback Error")) {
+        0 == strcmp(m_szLastError, "Read Header Callback Error")) {
       _png_load_bmp_attribute(ctx->png_ptr, ctx->info_ptr, pAttribute);
     }
     return false;
diff --git a/core/fxcodec/lgif/fx_gif.cpp b/core/fxcodec/lgif/fx_gif.cpp
index c109b6193d..52cb81bcab 100644
--- a/core/fxcodec/lgif/fx_gif.cpp
+++ b/core/fxcodec/lgif/fx_gif.cpp
@@ -103,15 +103,15 @@ int32_t CGifLZWDecoder::Decode(uint8_t* des_buf, uint32_t& des_size) {
   while (i <= des_size && (avail_in > 0 || bits_left >= code_size_cur)) {
     if (code_size_cur > 12) {
       if (err_msg_ptr) {
-        FXSYS_strncpy(err_msg_ptr, "Code Length Out Of Range",
-                      GIF_MAX_ERROR_SIZE - 1);
+        strncpy(err_msg_ptr, "Code Length Out Of Range",
+                GIF_MAX_ERROR_SIZE - 1);
       }
       return 0;
     }
     if (avail_in > 0) {
       if (bits_left > 31) {
         if (err_msg_ptr)
-          FXSYS_strncpy(err_msg_ptr, "Decode Error", GIF_MAX_ERROR_SIZE - 1);
+          strncpy(err_msg_ptr, "Decode Error", GIF_MAX_ERROR_SIZE - 1);
         return 0;
       }
       pdfium::base::CheckedNumeric<uint32_t> safe_code = *next_in++;
@@ -119,8 +119,8 @@ int32_t CGifLZWDecoder::Decode(uint8_t* des_buf, uint32_t& des_size) {
       safe_code |= code_store;
       if (!safe_code.IsValid()) {
         if (err_msg_ptr) {
-          FXSYS_strncpy(err_msg_ptr, "Code Store Out Of Range",
-                        GIF_MAX_ERROR_SIZE - 1);
+          strncpy(err_msg_ptr, "Code Store Out Of Range",
+                  GIF_MAX_ERROR_SIZE - 1);
         }
         return 0;
       }
@@ -146,8 +146,8 @@ int32_t CGifLZWDecoder::Decode(uint8_t* des_buf, uint32_t& des_size) {
               DecodeString(code);
             } else if (code > code_next) {
               if (err_msg_ptr) {
-                FXSYS_strncpy(err_msg_ptr, "Decode Error, Out Of Range",
-                              GIF_MAX_ERROR_SIZE - 1);
+                strncpy(err_msg_ptr, "Decode Error, Out Of Range",
+                        GIF_MAX_ERROR_SIZE - 1);
               }
               return 0;
             } else {
@@ -522,7 +522,7 @@ int32_t gif_read_header(gif_decompress_struct_p gif_ptr) {
   if (!gif_read_data(gif_ptr, (uint8_t**)&gif_header_ptr, 6))
     return 2;
 
-  if (FXSYS_strncmp(gif_header_ptr->signature, GIF_SIGNATURE, 3) != 0 ||
+  if (strncmp(gif_header_ptr->signature, GIF_SIGNATURE, 3) != 0 ||
       gif_header_ptr->version[0] != '8' || gif_header_ptr->version[2] != 'a') {
     gif_error(gif_ptr, "Not A Gif Image");
     return 0;